Keenso Car Rear View Rectifier for Germany/American Car Series, 12V DC Power Relay Capacitor Filter Connector for Backup Camera Rectifier Auto Car Camera Filter Light Modification

2008 Mercedes C350 with an aftermarket reverse camera. When I first installed the camera it worked perfectly with the engine off, but once I started the car the screen would flicker with horizontal lines and fade to black - every time. So I did some research, realized this is what I need and bought it. Installation is easy - just remember OUT goes to the camera, IN from the reverse light harness. Match polarity and you’re good to go. I just tested the camera 10 or so times on a drive and it worked flawlessly. If anything changes I’ll update the review but so far I’m impressed.

I installed an aftermarket backup camera in my 2013 Volkswagen Jetta GLI. I tapped into the power wire of my reverse light bulb. The camera powered on when running off battery power just fine, but when the engine was running, the video feed cut out. This rectifier fixed that problem. It was easy to hook up and works great. Glad it was cheap and simple fix!

Just installed a backup camera on my bmw 325i and got this product because I wasn't getting a signal, but it worked in the run postion and the camera had lights that were also on. After installing this, it didn't fix my problem at all, and now my camera doesn't even get power anymore. It isn't even well put-together, nor is it really anything. This is literally just a 1000 micro farad capacitor as well. Waste of time and money.

Unsure on longevity or any variables like that, but upon installation it immediately cleared up the static in my rearview camera that was being created by aftermarket LED taillights. Just install inline on your positive reverse wire (if that is what is activating & powering your camera) and enjoy the clearer view!

Filters the GM modulated power going to the trailer so an aftermarket trailer backup camera will work. Cheap and easy to wire in between my marker lights and the camera. Couple of gripes. Housing needs mounting holes so it can be screwed onto a flat surface. Housing needs a way to seal out the elements. The halves of the plastic housing have 6 little bitty plastic studs that press into holes in the other half. I’m suspecting the shock and vibration in a vehicle application. Will simply rattle the two halves apart, exposing the little PCB to the elements if it’s mounted on the back of the trailer close to the marker light and the camera. I used outdoor caulking to seal up the enclosure and double sided sticky to mount the housing to my trailer. I would have preferred a couple of mounting holes for screws and an o ring sealed enclosure also secured together with machine screws.

This device does what it is supposed to do: It provides a steady voltage from the backup light positive and ground wires to the backup camera.Before: The backup camera picture was good with engine off, no signal with engine on.After: Backup camera picture is good with engine off, and engine on.I used high quality butt connectors and a professional-grade crimping tool. Your results may vary if you use wire-taps or sub-standard connectors or tools.

I installed a universal backup camera on my truck a few days ago and have had intermittent flickering when the engine is on. Sometimes the picture would just flicker bright and dim and other times the feed would cutout to a black screen for a second or two. After researching I landed here and decided for $6 I’d try the rectifier.First, it does install and works, but did nothing to help the flickering screen. It MIGHT give the feed just slightly more clarity, but not much else. The fix for my issue was disconnecting the negative/black wire from my reverse light (which I learned from YouTube as apparently the negative wire connection creates engine interference)Another thing about this rectifier, the installation is a bit confusing. The box has an “in” and an “out” maybe I overlooked the instructions somewhere here on the page (none came with the unit) but I assumed the “in” would connect to the camera side and the “out” would run to the reverse light, but hooked up that way I had absolutely no power triggering the camera. I honestly didn’t even think the direction would matter but it does, at least in my setup. So, please be warned on install you may have to ensure the “out” wires run towards your camera and the “in” wires towards your reverse light.Overall, it’s a $6 part and I’m going to leave it installed for now unless it fails completely because while it doesn’t seem to be doing much it isn’t hurting anything and it’s really not worth undoing all the wiring at this point.

Fixed the issue that I was having with my 2016 Dodge Dart, now I can finally see my rear backup camera. Wished my mechanic knew about this gadget instead of gaslighting me to buy a whole new camera unit.